Symphony No. 3 "Symphony of Sorrowful Songs": 2. Lento e largo

Recording identifiers

ISRC

NLA509412502

Release date of the album this recording appears on

2017-10-20

CopyrightID (CopyrightChains transaction hash)

0x76cc7e24f5fad6899d41c00979597491b1c9b80372f257d547a3ba55ee64d2e3

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T20:09:33Z

Bitcoin block

960302

Canonical record hash

sha256:dd5404521c310120d303bb5ecc051fe222bee6e1b1e44878a3547b7d5bd036dd

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC NLA509412502

What this proof establishes

This recording was released in 2017, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.